'Yow! that's a darn good comparison there! The spin/rinsed towel looks newer, fresher, and the colors are brighter.
I really noticed brighter color with a somewhat old medium-green shirt of mine that I had previously thought of as faded and dingy, as in "don't wear this to client sites except when doing a new PBX install or helping the cable crew (both of which are physically intensive)." Over the past few months I've noticed: hey this is brighter, looks newer. So now I figure it must be the highspeed spin taking out all the detergent residue that had never quite come out. Very interesting!